Send an Inquiry

To receive a quote for your project, please fill in the following information, and we’ll get back to you promptly.

Submit Inventory List

Please fill in the following information, and we’ll get back to you promptly.

Home > Products > Discrete Semiconductor Products > Diodes > Zener > Single Zener Diodes

Nexperia USA Inc. BZX84-C68,215

Name: BZX84-C68,215
Brand: Nexperia USA Inc.
SKU: BZX84-C68,215
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: BZX84-C68,215

Manufacturer:: Nexperia USA Inc.

Category:: Single Zener Diodes

Package:: TO-236-3, SC-59, SOT-23-3

Datasheet:: BZX84-C68,215.pdf

Description:: DIODE ZENER 68V 250MW TO236AB

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:5,870

Please send an inquiry. Send us your inquiry, and we will respond immediately.

Product details

Overview

BZX84-C68,215 from Nexperia is a 68 V ±5 % tolerance Zener voltage regulator diode in SOT23 (TO-236AB) package, rated for 250 mW total power dissipation at 25 °C ambient, with 475 Ω typical differential resistance at I_Z = 2 mA and non-repetitive peak reverse power capability of 40 W. It serves as a precision reference or overvoltage clamp in low-power analog supply rails and signal conditioning circuits.

For engineers reviewing the BZX84-C68,215 datasheet, BZX84-C68,215 pinout, BZX84-C68,215 application, or BZX84-C68,215 equivalent, key selection criteria include its 64–72 V nominal Zener voltage range, ±5 % tolerance band, thermal resistance of 500 K/W (junction-to-ambient), 240 μA reverse current at V_R = 54.4 V, and cathode-anode polarity configuration in a 3-pin SOT23 footprint.

Technical Context

This device operates in reverse breakdown mode to maintain stable DC voltage across its terminals under varying load or input conditions. Its Zener voltage is specified at I_Z = 2 mA, with temperature coefficient of +0.05 mV/K and diode capacitance of 35 pF at 1 MHz and 0 V bias.

The SOT23 package supports surface-mount reflow assembly, with thermal resistance from junction to solder point at 330 K/W. It is rated for ambient temperatures from −55 °C to +150 °C and junction temperature up to 150 °C, with non-repetitive surge capability defined for 100 μs square-wave pulses.

Key Specifications

Parameter	Value and Actual Design Meaning
Zener Voltage (V_Z)	64 V to 72 V at I_Z = 2 mA - defines regulated output voltage range under nominal test current
Tolerance	±5 % - sets maximum allowable deviation from nominal 68 V rating for production binning
Differential Resistance (r_dif)	475 Ω max at I_Z = 2 mA - determines regulation stiffness and output impedance in active region
Total Power Dissipation (P_tot)	250 mW at T_amb ≤ 25 °C on FR4 PCB - limits continuous DC power handling without derating
Non-repetitive Peak Reverse Power (P_ZSM)	40 W for t_p = 100 μs - enables transient overvoltage clamping in surge protection circuits
Reverse Current (I_R)	240 μA max at V_R = 54.4 V - specifies leakage level below breakdown, critical for low-power standby operation
Thermal Resistance (R_th(j-a))	500 K/W - quantifies junction-to-ambient heat transfer efficiency on standard FR4 layout

Pinout & Package

Package: SOT23 (TO-236AB), 3-lead surface-mount plastic package with standard footprint per Figure 12 (reflow) and Figure 13 (wave soldering); dimensions per Figure 11.

Pin/Terminal	Circuit Role	Design Meaning
1	Anode (A)	Connected to lower-potential side of circuit; forward-biased during conduction, reverse-biased during regulation
2	Not Connected (n.c.)	Internally unconnected terminal; must remain floating-no PCB trace or component connection permitted
3	Cathode (K)	Connected to higher-potential side; carries reverse current during Zener operation; primary thermal path to PCB

Key Features

Feature	Design Value
Low-power regulation	250 mW P_tot enables use in space-constrained, battery-powered, or thermally isolated designs
±5 % tolerance grade	Cost-optimized binning for non-critical reference applications where tighter tolerance is unnecessary
High surge robustness	40 W non-repetitive peak power supports transient suppression in industrial I/O and sensor interfaces
SOT23 compatibility	Standardized footprint allows drop-in replacement across multiple Zener families and automated placement
Wide operating temperature	−55 °C to +150 °C ambient range supports deployment in automotive under-hood, industrial control, and outdoor equipment

Applications

Power Supply Reference

Overvoltage Clamp

Use Scenario: Stabilizing feedback node in low-current linear regulator or op-amp reference circuit.

IC Role / Device Role / Timing Role: Provides fixed 68 V reference voltage to comparator or error amplifier input.

Use Value: Maintains ±5 % regulation accuracy across 0.5–10 mA load current, minimizing output drift due to line or load variation.

Use Scenario: Protecting ADC input or microcontroller GPIO from ESD or inductive kickback.

IC Role / Device Role / Timing Role: Shunts transient energy above 72 V to ground before downstream circuitry sustains damage.

Use Value: Limits clamped voltage to ≤72 V with <100 ns response, leveraging 40 W surge rating for single-event transients.

Signal Level Translation

Current Source Bias

Use Scenario: Setting threshold voltage for comparator detecting high-voltage rail presence.

IC Role / Device Role / Timing Role: Acts as passive voltage divider element to scale 100 V rail down to logic-compatible level.

Use Value: Delivers stable 68 V reference point with <0.1 %/°C tempco contribution, enabling accurate high-side sensing.

Use Scenario: Establishing constant current through LED string or sensor bias network.

IC Role / Device Role / Timing Role: Forms upper leg of two-resistor current source with series pass transistor.

Use Value: Ensures current stability within ±5 % over temperature via predictable V_Z drift and low r_dif.

Equivalent & Alternatives

The following parts are listed as comparable options for similar Zener voltage regulation applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
ON Semiconductor MMBZ5263BLT1G	68 V ±5 %, 225 mW P_tot, 700 Ω r_dif, SOT23 package	Lower power rating and higher dynamic impedance reduce regulation precision under variable load	Select when legacy ON Semi sourcing or dual-sourcing strategy requires second-source qualification
Vishay BZX84-C68-TP	68 V ±5 %, 300 mW P_tot, 450 Ω r_dif, same SOT23 footprint	Higher power rating improves thermal margin but requires verification of PCB copper area for derating	Prefer for higher-reliability industrial designs needing extended power headroom without footprint change

Compared with BZX84-C68,215, the MMBZ5263BLT1G trades 25 mW power and ~225 Ω higher impedance for broader distributor availability, while the BZX84-C68-TP offers +50 mW headroom and lower impedance at identical voltage tolerance-making it suitable for higher-stress regulation tasks without layout revision.

Availability

BZX84-C68,215 is available at Aetrix Electronics and suitable for power supply reference, overvoltage clamp, and signal level translation requiring stable component supply, consistent parametric binning, and long-term SMT manufacturing support.

Supply support for BZX84-C68,215 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Nexperia is a global semiconductor expert delivering high-performance, reliable discrete, logic, and MOSFET devices optimized for efficiency and miniaturization in consumer, industrial, and communications systems.

The BZX84 series belongs to Nexperia's precision Zener regulator portfolio, designed specifically for cost-sensitive, low-power voltage reference and protection functions in compact SMT applications.

FAQ

What is the Zener voltage tolerance and test condition for BZX84-C68,215?

The BZX84-C68,215 has a nominal Zener voltage of 68 V with ±5 % tolerance, verified at I_Z = 2 mA and T_j = 25 °C. This corresponds to a guaranteed working voltage range of 64 V to 72 V under specified test conditions, as confirmed in Table 9 of the Rev. 7 datasheet.

Can pin 2 be used as a thermal pad or grounded for improved heat dissipation?

No-pin 2 is explicitly marked "n.c." (not connected) in the official pinning diagram (Table 2) and internal construction. It is electrically isolated and must remain unconnected; grounding or routing to copper will not improve thermal performance and may cause unintended parasitic coupling.

How does the temperature coefficient affect regulation accuracy over −40 °C to +85 °C?

The temperature coefficient is +0.05 mV/K, meaning V_Z increases by approximately 6.3 mV per 10 °C rise. Over −40 °C to +85 °C (125 K span), total drift is ~6.3 mV × 12.5 = ±79 mV - adding ±0.12 % to the 68 V nominal, well within the ±5 % tolerance band and not dominant in system error budget.

Is BZX84-C68,215 suitable for automotive applications?

No-this part is explicitly designated as non-automotive qualified per Section 13 Revision History, which states "Products changed to non-automotive qualification" in Rev. 7. Automotive-grade alternatives (e.g., BZX84-Q series) require separate qualification per AEC-Q101 and are not interchangeable without revalidation.

BZX84-C68,215 Specifications

Product attributes: Attribute value

Manufacturer:: Nexperia USA Inc.

Series:: BZX84

Package/Case:: TO-236-3, SC-59, SOT-23-3

Packaging:: Tape & Reel (TR)

Product Status:: Active

Voltage - Zener (Nom) (Vz):: 68 V

Tolerance:: ±5%

Power - Max:: 250 mW

Impedance (Max) (Zzt):: 240 Ohms

Current - Reverse Leakage @ Vr:: 50 nA @ 47.6 V

Voltage - Forward (Vf) (Max) @ If:: 900 mV @ 10 mA

Operating Temperature:: -65°C ~ 150°C

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: TO-236AB

BZX84-C68,215 FAQ

1.How can I place an order for BZX84-C68,215 through Aetrix?

Please submit a Request for Quotation (RFQ) for BZX84-C68,215 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for BZX84-C68,215 reliable?

The price and inventory of BZX84-C68,215 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX84-C68,215 is usually 5 days.

3.What payment methods are accepted for BZX84-C68,215?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX84-C68,215 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BZX84-C68,215?

BZX84-C68,215 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BZX84-C68,215 order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for BZX84-C68,215?

For technical support, including BZX84-C68,215 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX84-C68,215 requirements.

6.How does Aetrix verify that BZX84-C68,215 is sourced from the original manufacturer or authorized distributors?

All BZX84-C68,215 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that BZX84-C68,215 meets industry standards.

7.What is the process for return or replacement of BZX84-C68,215?

All BZX84-C68,215 units undergo pre-shipment inspection (PSI). If there is an issue with BZX84-C68,215, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The BZX84-C68,215 part is unused and in its original packaging.

Return procedure for BZX84-C68,215:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

Tech Hub

2026-09-03 Logic Level Shifter: How to Connect 3.3V and 5V Logic Safely

A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.

2026-09-03 74HC595 vs TPIC6B595: Output Drive, Pinout, Current, and Load Selection

The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…

2026-09-01 74HC595 Pinout, Timing, Output Current, and Applications

The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…

2026-09-01 Latch vs Flip-Flop: Timing, Differences and Design Choices

A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…

2026-08-30 D Latch Circuit: Truth Table, Timing, ICs and Applications

A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …

2026-08-28 SR Latch Explained: NOR and NAND Circuits, Truth Tables, and Applications

An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…

2026-08-27 Latch Circuit: SR and D Latches, Truth Tables, Timing, and Applications

Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…

2026-08-21 What Is an LED Driver? Types, Circuits, Dimming, and Selection

An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…

2026-08-18 Operational Amplifier (Op Amp): Basics, Configurations, Feedback and Applications

Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…

2026-08-14 Jumper Cables: How to Use, Connect and Choose Them Safely

Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…